Table 1.
Parameters of the high-resolution spectral line observations.
| Observing date | Frequencies | Line | Array | Phase | Program | ΔV | Beam | PA | rms |
|---|---|---|---|---|---|---|---|---|---|
| (GHz) | Calibrator | (km s−1) | (″) × (″) | (°) | (mJy beam−1) | ||||
| 2005 Jun. 08 | 1.6 | OH | EVN1 | J2052+1619pr | EK020 | 6.1 | 0.005 × 0.008 | −60 | 0.26 |
| 2010 Jun. 08 | 1.6 | OH | EVN2 | J2052+1619pr | ES064B | 3.1 | 0.028 × 0.005 | 9 | 0.67 |
| 2015 Jul. 16 | 333.3 | CO(3–2) | ALMA | J2051+1743 | 2012.1.01022.S | 5.4 | 0.20 × 0.17 | −54 | 1.91 |
| 2015 Jul. 16 | 343.9 | HCO+(4–3) | ALMA | J2051+1743 | 2012.1.01022.S | 5.4 | 0.19 × 0.16 | −55 | 1.92 |
| 2001 Jul. 22 | 1.4 | H I | VLA-C | 2035+189 | AG0613 | 22.2 | 19.7 × 17.9 | 72 | 0.33 |
Notes. Column (3): the atom or molecular lines. Column (4): the observational array. EVN1: Ef, Jb, CM, Nt, Tr, Wb, On, Mc, Ur, Hh, Ar. EVN2: Ef, Jb, On, Mc, Tr, Sh, Ur, Wb. Column (5): the phase-reference calibrator for EVN projects and phase calibrator for VLA and ALMA projects. The index “pr” means the project is in phase-reference mode. Column (6): the program name. Column (7): the spectral velocity resolution in km s−1. Columns (8) and (9): the beam FWHM and position angle. Column (10): the 1σ noise level for the channel image.
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